Synthesis and characterization of (CaxLa1-x)(Ba1.75-xLa0.25+x) Cu3O7+δ tetragonal superconductor by an aqueous solution technique using citric acid

Yasushi Sato*, Kohtaro Yoshioka, Minoru Osada, Valery Petrykin, Masato Kakihana, Yoshito Tanaka, Ai Yamaguchi, Takahiro Katsumata, Hiroshi Yasuoka

*この研究の対応する著者

研究成果: Article査読

抄録

Polycrystalline samples of (CaxLa1-x) (Ba1.75-xLa0.25+x)Cu3O7+δ tetragonal superconductor for Ca content (x) from 0.0 to 0.6 were synthesized by a simple aqueous solution technique using citric acid. The combined results of X-ray diffraction and Raman scattering analysis indicated that the polycrystalline samples for the entire Ca content (x) were of single-phase character. The Tc onset values for (x) from 0.0 to 0.6, determined precisely from the complex magnetic susceptibility measurements, increased from 45.0 K for x=0.0 to 78.7 K for x=0.4, remained almost constant at 80 K between x=0.5 and x=0.6. It was also found that sintering condition affected rather dramatically superconducting properties in this system.

本文言語English
ページ(範囲)1147-1151
ページ数5
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
48
12
出版ステータスPublished - 2001 12月
外部発表はい

ASJC Scopus subject areas

  • 機械工学
  • 金属および合金

フィンガープリント

「Synthesis and characterization of (CaxLa1-x)(Ba1.75-xLa0.25+x) Cu3O7+δ tetragonal superconductor by an aqueous solution technique using citric acid」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル